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Spencer Adkisson
Trad climber
Reno, NV
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Apr 28, 2008 - 11:59pm PT
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Not to be a pest, but if you look at the limestone that houses Shasta Caverns, and the fact that Castle Crags, and the Trinity Alps are different plutons, and the Marble Mountains and Eddys are uplifted sea floor, and there is a smaller, lesser-known limestone crag in the Shasta valley, and the fact that the Sutter Buttes came seemingly from nowhere, you have to look at it and say that the Earth is no more than 4,000 years old, and God created it all with one stroke of his celestial paintbrush. There, take that.
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nature
climber
Santa Fe, NM
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Apr 29, 2008 - 12:12am PT
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LoL! OK, I'm wrong.
7 days, yes?
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Spencer Adkisson
Trad climber
Reno, NV
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Apr 29, 2008 - 12:18am PT
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Halaleuja brother!
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Jaybro
Social climber
The West
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Apr 29, 2008 - 01:45am PT
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Great stuff in this thread, Never even occurred to me to research the Geology of the Sierra butt's, Now the difference seems obvious.
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Patrick Sawyer
climber
Originally California now Ireland
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Apr 29, 2008 - 09:03am PT
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Spencer, the Bible says about 6,000 years doesn't it? Or is that what the fundamentalists figure? I'm going for 10,000 years. It's a nice round figure.
Dingus, the Arboretum caused me to miss a number of classes at Columbia. At least that was my excuse. Great place to boulder - and smoke dope.
Lassen is definitely part of the Cascades. I've always wondered about the Trinity Alps and Castle Crags.
And we all know the origins of Mt Diablo - the Sleeping Giant.
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Patrick Sawyer
climber
Originally California now Ireland
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Apr 29, 2008 - 10:13am PT
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Donny (Don nowadays I guess) Reid use to have this photograph taken (supposedly) from the summit of Mt Diablo. It looked straight across the Central Valley and into Yosemite Valley. You could see the top of El Cap and Half Dome. He didn't know where he got the photo.
I remembered when he showed it to me in Camp 4. It looked real cool, but we both thought that it might have been a doctored photo, as I grew up on Mt Diablo, so to speak, and have been on the summit numerous times, and I never saw the Valley, even with binoculars.
Anybody else?
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Spencer Adkisson
Trad climber
Reno, NV
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Apr 29, 2008 - 04:22pm PT
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P-Saw, I don't care what the Babble says. Fundamentalists, schumundamentalists, God personally told me that it was 4,000. I just talked to him. He's getting over a cold, but otherwise, doing well. He said I'm right. What are you anyway, some kind of blasphemer? Open your heart and you mind. Logic is a tool of the devil. =)
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Jaybro
Social climber
The West
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Apr 29, 2008 - 05:01pm PT
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I have heard that you can discern yosemite on a clear day from on top of MT Diablo, I never have, but I have seen snow covered peaks.
It was closer in the old days...
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Joe Metz
Trad climber
Bay Area
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Apr 29, 2008 - 05:02pm PT
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Patrick, that photo was taken from the observatory at Mt. Hamilton. You can buy a copy of it at the observatory gift shop.
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Willoughby
Social climber
Truckee, CA
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Jun 28, 2017 - 11:16am PT
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I feel like geology (which I know very little about) is a surprisingly fast-moving field. Any updated thinking here?
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NutAgain!
Trad climber
South Pasadena, CA
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Jun 28, 2017 - 11:53am PT
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Nice bump!
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clode
Trad climber
portland, or
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Jun 28, 2017 - 11:55am PT
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As a Registered Oregon Geologist, with a BS in Geology from U. of O, and a MS in Earth Sciences from PSU, I can say that DMT has it pretty well dialed in.
I took my Field Geology course in S. Oregon and N. Cal., in the Klamath/Siskiyous. In that area is the WTRPZ (Western Triassic and Paleozoic Belt). This is a rather anomalous chunk of "exotic" terrain, rafted in on tectonic plates from Wrangellia, that area from western British Columbia hosting the Wrangell Mountains. This old complex of rocks contains numerous rock types, abruptly juxtaposed against each other as components of imbricated reverse thrust blocks. DMT's analogy of "shingles" on a steep roof is a good one.
Mt. Lassen marks the approximate southern boundary of the Cascade Range, which has its northern terminus in northern Washington/Southern British Columbia.
Oh, and my bible said it took 6,000 years for all of this to happen!
Any questions?
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splitclimber
climber
Sonoma County
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Jun 28, 2017 - 04:08pm PT
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what I remember reading or learning is that, from a vegetation mapping perspective, Lassen "area" is the transition between the Sierra Nevada and Cascade mountain ranges and contains a mix of species commonly associated with each range. Although Lassen Peak is definitely part of the cascades.
Geologically speaking - don't know but would support DMT's analysis.
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